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When the seaweed seedling curtain is raised at room temperature, it is not too early or too late to hold it in the sea and it is too early to go to the sea. Because of the high water temperature in the sea, it is a time when various species of organisms flourish. Net curtains are often covered with shellfish and miscellaneous products. At the same time, the algae and the seedlings on the seedlings just happened. After the sea, there are more floating muds. If the scrubbing is not done in time, it will be buried under the mud, and the seedlings will die and go to the sea too late. The indoor environment conditions are far from satisfactory. Miaozi requirements not only inhibit the growth of seedlings, but also affect the emergence density. Therefore, we must correctly grasp the time of shipment, which is an important key to improving the emergence rate. In general, when the temperature of the sea drops to about 21°C and the seedlings are already visible to the naked eye, it is more appropriate to leave the house for raising.
(2) Washing floating sludge
In order to reduce the damage of the mud on the seedlings, it is required to wash the seedlings on a regular basis, 1-2 times a day, basically to ensure that the seedling curtains are clean and the seedlings are correctly grown.
(3) timely fertilization
During the period of raising the seedlings, three methods, namely hanging and splashing, can be used for fertilization. Apply 250 grams of nitrogen fertilizer to each net screen every day, 2 bags per seedling curtain, 1 bag per day, 100 grams of fertilization per bag, 2 days of fertilization, 7-8 fertilizations, pouring, splashing Fertilizer concentration is 300:1. Take this amount of fertilizer and fertilization methods, have a certain effect.
(4) Adjust lighting
In the turbid sea area, we must do a good job of adjusting the light of the seedlings. If we find that the seedlings in the upper layer of seedlings grow significantly better than the seedlings in the lower layer, we should invert the seedlings for 1 time, so that the light conditions of the seedlings in the lower layers can be improved. Seedlings grow evenly. This work has been done to complete the seedlings.
(1) timely delivery